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arimarieestrada
12.10.2019 •
Mathematics
Use the x-intercept method to find all real solutions of the equation.
x^3-8x^2+9x+18=0
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Ответ:
a.![x=-1,3,\:or\:6](/tpl/images/0312/8303/e5b60.png)
Step-by-step explanation:
The given equation is;
To solve by the x-intercept method we need to graph the corresponding function using a graphing calculator or software.
The corresponding function is
The solution to
is where the graph touches the x-axis.
We can see from the graph that; the x-intercepts are;
(-1,0),(3,0) and (6,0).
Therefore the real solutions are:
Ответ:
A. C. E.
Step-by-step explanation:
The last one is my favorite